When the wind whipping against the tent sounds like winterâs claws scraping the worldâs biggest chalkboard, this cocoon of warmth will fend off any apprehension. Constructed with toasty Thermix insulation and an Omni-Heat thermal reflective lining that traps and recirculates your body heat while providing breathability, the Reactor 15 Mummy is built to keep you comfortable with temps down in the teens. In addition to Omni-Heat, several thoughtful design details work together to help cancel heat loss: a draft tube along the zipper prevents it from becoming a cold spot, a face gasket cinches down to keep crucial head heat in, and a secondary collar around the neck cinches in for double draft-canceling duty. Featuring a sleek, super soft texture, the shell fabric is outfitted with Omni-Shield advanced repellency to keep out the wet-and itâs sewn with off-set quilting so thereâs no kinks in your cold-fighting armor. A trapezoid toe box provides plenty of room for foot comfort. The Reactors are engineered with your choice of a right or left-hand zipper so they can be zipped together to make a coupleâs bag. FEATURES: Fabric: 100% nylon, Omni-Heat thermal reflective lining, Omni-Shield advanced repellency, Stash pocket, Offset quilt construction, LH/RH zip together, Trapezoid footbox, Sleeping pad retention loops, Storage sack included, 8â x 17.5â compression sack included, Thermix MX Insulation, Draft tube, 56oz average weight, Long fill weight: 45oz average weight, EN T-Comfort: 28 degrees F/-2 degrees C, EN T-Limit: 17 degrees F/-8 degrees C, EN T-Extreme: -16 degrees F/-27 degrees C, Long fits 6â6â person, Imported,